All new iPhones from 2018 were released with dual SIM support, but none of them could actually use eSIM in iOS 12, just the physical nano SIM card. But from iOS 12.1 you can now benefit from eSIM so you can say a business and personal plan on your iPhone X S S S S S S S S S  S ] Max, or X R at the same time.
Secondary Line Activation Requirement
Setting up can be quite confusing because digital eSIM is a brand new thing for iPhones. First, you must either have an iPhone X S X S Max or X R with dual -SIM compatibility. Then you must have iOS 12.1 installed, which included support for eSIM in the above-mentioned devices. X X X ] Max, or X R You must also have an unlocked iPhone X Use plans from two different carriers at the same time, otherwise you will need to use the same carrier – you already have a plan with. In the United States, only AT & T, T-Mobile and Verizon Wireless eSIM support your iPhone, but you may need to wait for an operator update from them before you can use it. Sprint has also stated that they will support eSIM sometime in the near future.
Another very important thing to mention is that if you use Sprint or Verizon Wireless, a CDMA provider as your first enabled line, your other SIM will not support another CDMA account, according to Apple. This means that you must use a GSM based plan as secondary as long as your iPhone is unlocked. If you purchased your iPhone from Apple or Verizon directly, it will be unlocked, and it is the same for Sprint in most cases.
While you can only use two mobile plans at the same time on your newer iPhone model, when you make or receive calls, you can only use one at a time. If you get another conversation from the opposite plan, it will not try to break through, but instead will go straight to your voicemail. So keep that in mind.
Also, think that you can have more than one plan on eSIM, but the only thing that can be focused at a time, which means that the other plans will not be useful until you manually Switch between your current eSIM plan to another eSIM plan on your device. X S S S S ] X S S S S S S S S S S S ] Max or X R on your nano SIM, so to add a secondary plan as a work account, a local data plan in another country while traveling or a separate data plan just for you to To name a few examples, you must scan a QR code from your operator, use your operator's app, or enter the information manually.
Before You Go However, we suggest that you contact your carrier to transfer your current nano SIM account to eSIM, so it's easier to pop up in a nano SIM when tr Aveling. If that does not matter to you, you can simply activate a second or third line on eSIM.
If you get a secondary plan from either your current operator or another carrier (if you have an unlocked iPhone), they will give you a QR code, either personally on receipt or via an email that you can scan to easily create the plan.
When you have the QR code, open the Settings app, tap "Cellular", "Then add to Cellular Plan." Then scan the QR code, and that's it. You may be asked to enter a verification code that your supplier would have given you, so use it to complete the process if you need.
In some cases, you can purchase a secondary plan directly from your carrier's app on your iPhone. In the United States it is myAT & T, My Sprint Mobile, T-Mobile or My Verizon. Each app will be different, so you need to find out how to buy a secondary plan with it. During the process, you can set it directly on your eSIM.
You will not be able to use the Sprint or Verizon app to purchase a secondary line if you are already on a CDMA network with your current plan. If you use AT & T or T-Mobile as your first enabled line, you can set a CDMA-based version as a second plan using the Sprint or Verizon app, or you can set another GSM-based line of AT & T or T-Mobile app.
Option 3: Enter Manual Information
If the two above options are not available, you can still manually enter the information for your secondary line. Open the Settings app, touch "Mobile" and then "Add mobile plan." On the bottom of the screen Scan QR Code touch "Enter Details Manually".
You must have the SM-DP + address from your carrier, which is the one used to use the subscription manager to encrypt operator information during a SIM activation over the air. You must also have an activation and confirmation code.
When the plan has been activated, you need to tag it so that you can easily tell what plan you are using on your iPhone, your primary or the one you just added. You can choose between "Primary", "Secondary", "Personal", "Business", "Travel" or "Cell Data", but you can also print your own custom label.
click "Done" to complete the installation. You can always change this later in the "Cellular Plan Label" in the plan's mobile settings.
Once you have noticed your new line, you must now choose how your two plans work together on your iPhone (see other screenshots above). On the Default Line screen, you can select one of the following options.
- Use "[First Plan Name]" as the default line. "[Second Plan Name]" will be available for phone and SMS. (This means your first level will be your primary, so it will be the default for voice, SMS, data, iMessage and FaceTime calls. The second plan is for voice and text only.)  Use "[Second Plan Name]" as your default line. "[First Plan Name]" will be available for phone and text message. (This means that your second plan will be your primary, so it will be the default for voice, SMS, data, iMessage and FaceTime calls. The first plan is for voice and text only.)  Use "[Second Plan Name]" For cellular data only. "[First Plan Name]" will be your default line. (This means your second plan is only for data, which is a good option when traveling, and your first plan is the default for voice, SMS, data, iMessage and FaceTime calls.)  Now that your iPhone is configured with two different plans you can use at the same time, you can start using them. In the Apps app, you can assign your SIM account to contacts so that it's always the default to use that account for each person. When you call, you can change which line is used for iMessages and text by default or you can change when writing a new message. S S S S S S S S S S S R